Nissequogue is located in Suffolk county New york with a geographic area of 3.8 square miles. The total population in Nissequogue is 1,599 with 50.7% male and 49.3% female. Children under age 5 represent 0.6% of the population, under age 18 equal 16.9% of the population and over age 65 is 19.1% of the population. The median household income is $147,639, per capita income is $90,217. There are a total of 547 housing units with 87.6% owner occupied. Education includes 6.0% of residents that are high school graduates and 76.4% with a bachelor's degree or higher. The average temperature in Nissequogue in the summer is 70 degrees, and in the winter 27 degrees.